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基于高频GPS数据的互通立交匝道货车运行速度预测模型

张敏 刘锴 张驰 奚圣宇 聂渝涵

张敏, 刘锴, 张驰, 奚圣宇, 聂渝涵. 基于高频GPS数据的互通立交匝道货车运行速度预测模型[J]. 交通运输工程学报, 2024, 24(4): 228-242. doi: 10.19818/j.cnki.1671-1637.2024.04.017
引用本文: 张敏, 刘锴, 张驰, 奚圣宇, 聂渝涵. 基于高频GPS数据的互通立交匝道货车运行速度预测模型[J]. 交通运输工程学报, 2024, 24(4): 228-242. doi: 10.19818/j.cnki.1671-1637.2024.04.017
ZHANG Min, LIU Kai, ZHANG Chi, XI Sheng-yu, NIE Yu-han. Operating speed prediction models of trucks at interchange ramps based on high-frequency GPS data[J]. Journal of Traffic and Transportation Engineering, 2024, 24(4): 228-242. doi: 10.19818/j.cnki.1671-1637.2024.04.017
Citation: ZHANG Min, LIU Kai, ZHANG Chi, XI Sheng-yu, NIE Yu-han. Operating speed prediction models of trucks at interchange ramps based on high-frequency GPS data[J]. Journal of Traffic and Transportation Engineering, 2024, 24(4): 228-242. doi: 10.19818/j.cnki.1671-1637.2024.04.017

基于高频GPS数据的互通立交匝道货车运行速度预测模型

doi: 10.19818/j.cnki.1671-1637.2024.04.017
基金项目: 

陕西省自然科学基础研究计划项目 2023-JC-YB-391

国家重点研发计划 2020YFC1512005

四川省科技计划项目 2022YFG0048

山西省重点研发计划 202102020101014

详细信息
    作者简介:

    张敏(1981-),女,广西柳州人,长安大学副教授,工学博士,从事综合交通系统分析、交通安全研究

    通讯作者:

    张驰(1981-),男,四川宜宾人,长安大学教授,工学博士

  • 中图分类号: U412.3

Operating speed prediction models of trucks at interchange ramps based on high-frequency GPS data

Funds: 

Natural Science Basic Research Project of Shaanxi Province 2023-JC-YB-391

National Key Research and Development Program of China 2020YFC1512005

Science and Technology Project of Sichuan Province 2022YFG0048

Key Research and Development Program of Shanxi Province 202102020101014

More Information
Article Text (Baidu Translation)
  • 摘要: 为明确互通立交匝道路段货车运行速度规律,在分析高速公路主线至匝道末端货车高频GPS实测数据的基础上,构建了互通立交匝道货车运行速度模型;通过分析货车实测速度,确定了匝道货车运行速度特征点,对特征点处速度可能相关的设计要素进行相关性分析,采用全子集回归方法建立了货车在特征点的多个运行速度模型;对比不同模型的赤池信息量准则、Mallows's Cp统计量以及模型检验值,确定自变量参数,得到了互通立交小鼻点、匝道圆曲线曲中点以及匝道与连接线合流鼻处的货车运行速度预测模型,并采用4条匝道数据对模型进行验证。研究结果表明:互通立交小鼻点、匝道圆曲线曲中点及匝道与连接线合流鼻可作为匝道货车运行速度特征点;匝道圆曲线半径、出口渐变率以及分流点运行速度对小鼻点运行速度有显著影响;半径、曲中点至匝道合流鼻距离以及小鼻点运行速度对曲中点运行速度有显著影响;曲中点前半段纵坡、圆曲线曲率以及曲中点运行速度对合流鼻运行速度有显著影响;3个特征点处的运行速度预测模型相关系数分别为0.988、0.993、0.990,预测值与实测值的平均绝对百分比误差均小于10%,满足模型精度要求。

     

  • 图  1  采集路段示意

    Figure  1.  Schematic of collection section

    图  2  试验路段示意

    Figure  2.  Schematic of test section

    图  3  匝道货车有效速度数据提取方法

    Figure  3.  Effective speed data extraction method for on-ramp trucks

    图  4  匝道货车有效速度数据处理方法

    Figure  4.  Effective speed data processing method for on-ramp trucks

    图  5  互通立交出口及匝道路段货车速度曲线

    Figure  5.  Truck speed curves of interchange exit and ramp section

    图  6  匝道分段示意

    Figure  6.  Schematic of ramp segments

    图  7  特征点处速度与变量Pearson相关性分析结果

    Figure  7.  Results of Pearson correlation analysis between speeds and variables at characteristic points

    图  8  模型预测速度与实测速度对比

    Figure  8.  Comparison between model predicted speeds and measured speeds

    表  1  互通立交数据采集路段基本信息

    Table  1.   Basic information of interchange data collection sections

    匝道编号 匝道类型 车道宽/m 匝道圆曲线半径/m 匝道长度/m
    1 定向匝道 3.5 120 534.72
    2 180 638.82
    3 90 557.08
    4 100 425.79
    5 半定向匝道 160 510.52
    6 300 465.10
    7 380 459.34
    8 环圈匝道 50 443.67
    9 60 490.04
    10 定向匝道 170 552.59
    11 180 486.79
    12 半定向匝道 290 480.33
    13 环圈匝道 60 463.81
    下载: 导出CSV

    表  2  不同类型匝道速度特征对比

    Table  2.   Speed characteristics comparison of different types of ramp

    匝道类型 匝道数量 速度差值范围/(km·h-1) 最小速度位置与匝道特征点关系
    定向匝道 4 25~50 圆曲线曲中点前20~25 m
    半定向匝道 35~40 匝道终点后40~50 m
    环圈匝道 45~50 圆曲线曲中点前20~25 m
    下载: 导出CSV

    表  3  变量参数统计

    Table  3.   Variable parameter statistics

    变量 匝道编号
    1 2 3 4 5 6 7 8 9
    Ld/m 90 140 100 100 120 100 100 125 145
    Ls/m 83.3 82.7 72.4 59.7 91.2 35.0 82.1 59.5 91.4
    Lc/m 128.6 196.3 175.8 86.9 98.2 98.7 209.7 73.9 140.2
    L1/m 152.6 186.8 257.5 263.1 85.3 192.2 188.0 59.6 180.0
    L2/m 208.3 228.6 169.6 219.7 156.2 142.9 83.2 217.6 249.9
    L3/m 118.3 88.6 69.6 119.7 36.2 42.9 -16.8 22.6 104.9
    L4/m 48.9 123.2 112.5 24.6 96.7 185.8 172.0 26.1 25.0
    K 0.040 0.044 0.010 0.028 0.029 0.014 0.028 0.028 0.039
    R1/m 120 180 90 100 160 300 380 50 60
    R2/m 2 400 1 989 3 250 9 999 2 000 2 739 9 999 6 000 2 400
    R3/m 4 000 5 000 3 000 1 200 2 000 7 000 99 999 99 999 16 000
    R4/m 2 800 6 000 2 000 12 000 99 999 99 999 2 000 12 200 99 999
    1/R1/m-1 0.008 0.006 0.011 0.010 0.006 0.003 0.003 0.020 0.017
    1/R2/m-1 0.000 42 0.000 50 0.000 31 0.000 10 0.000 50 0.000 37 0.000 10 0.000 17 0.000 42
    1/R5/m-1 0.008 0.004 0.009 0.010 0.002 0.002 0.008 0.020 0.018
    α/rad 1.989 4 1.657 2 3.021 9 1.550 7 1.038 7 0.684 9 0.708 5 2.741 5 3.120 8
    i1/% -1.111 -2.542 1.431 3.873 0.477 -0.059 0.305 1.356 -1.080
    i2/% 0.601 -0.872 -1.977 -1.01 3.110 1.293 2.780 2.000 -1.859
    V0/(km·h-1) 78.67 82.45 73.07 83.05 76.71 82.01 74.82 61.02 82.33
    Vd/(km·h-1) 65.69 71.41 61.78 75.13 64.67 75.45 66.85 39.04 66.54
    Vq/(km·h-1) 54.91 64.31 54.34 55.71 56.77 70.35 63.80 32.23 46.87
    Vz/(km·h-1) 54.03 65.22 49.87 51.58 56.36 69.55 63.67 36.66 46.14
    下载: 导出CSV

    表  4  运行速度描述性统计

    Table  4.   Operation speed descriptive statistics

    出口匝道货车运行速度 平均值/(km·h-1) 标准差/(km·h-1)
    分流点速度 77.128 9 2.351 2
    小鼻点速度 65.179 8 3.620 3
    曲中点速度 55.481 3 3.701 1
    合流鼻速度 54.792 8 3.487 8
    下载: 导出CSV

    表  5  特征点货车运行速度统计

    Table  5.   Operation speed statistics of trucks at characteristic points

    模型 公式 变量 R2 AIC
    1 Vd=93.559-0.244Ld Ld 0.043 44.44
    2 Vd=1.397V0-44.785 V0 0.900 27.18
    3 Vd=74.776-1 156.244/R1 1/R1 0.506 41.53
    4 Vd=7.034+0.959V0-0.146Ld V0Ld 0.950 25.63
    5 Vd=1.152V0-450.984/R1-21.454 V0、1/R1 0.967 21.91
    6 Vd=91.769-0.206Ld-307.16/R1 Ld、1/R1 0.517 41.53
    7 Vd=1.628V0-379.1K-51.795 V0K 0.946 26.44
    8 Vd=1.26V0-0.093Ld-233.131K-16.081 V0LdK 0.963 25.63
    9 Vd=1.326V0-149.04K-462.702/R1-28.446 V0K、1/R1 0.988 20.23
    10 Vd=5.774+0.978V0-0.154Ld+77.728/R1 V0Ld、1/R1 0.979 21.91
    11 Vd=6.474+0.967V0-0.145Ld-617.373/R2 V0Ld、1/R2 0.954 25.63
    12 Vd=1.638V0-374.939K-1 245/R2-52.241 V0K、1/R2 0.955 26.44
    13 Vd=1.25V0-0.094Ld+918.004/R2-234.828K-15.417 V0LdK、1/R2 0.966 25.63
    14 Vd=1.292V0-0.104Ld+113.497/R1-236.647K-18.27 V0LdK、1/R1 0.990 20.23
    15 Vd=5.443+0.983V0-0.153Ld+76.131/R1-392.81/R2 V0Ld、1/R1、1/R2 0.988 21.45
    16 Vd=1.357V0-0.103Ld+1.644α-254.618K-24.843 V0LdKα 0.984 25.63
    17 Vd=1.329V0-0.061Ld-594.199/R1-267.623K+4.048α-26.19 V0LdK、1/R1α 0.990 20.23
    18 Vd=1.419V0-0.036Ld-870.404/R1-262.804K+5.433α- 777.611/R2-33.877 V0LdK、1/R1α、1/R2 0.999 13.26
    下载: 导出CSV

    表  6  共线性诊断结果

    Table  6.   Covariance diagnostic results

    维数 特征值 条件指数 方差比例
    常量 分流点速度/(km·h-1) 匝道圆曲线曲率 出口渐变率
    1 3.701 1.00 0.00 0.00 0.01 0.01
    2 0.218 4.12 0.00 0.00 0.62 0.04
    3 0.079 6.86 0.01 0.01 0.00 0.86
    4 0.002 40.32 0.99 0.99 0.37 0.09
    下载: 导出CSV

    表  7  系数分析结果

    Table  7.   Coefficient analysis results

    自变量 非标准化系数 标准系数 t检验值 显著性 系数的95%置信区间 相关性 共线性统计量
    回归系数/截距 标准误差 下限 上限 零阶系数 偏判定系数 部分判定系数 容差 方差扩大因子
    常量 -28.446 7.61 -3.74 0.013 -47.99 -8.89
    分流点速度 1.326 0.10 0.86 13.81 0.000 1.08 1.57 0.949 0.987 0.683 0.629 1.590
    匝道圆曲线曲率 -462.702 111.64 -0.25 -4.15 0.009 -749.68 -175.73 -0.711 -0.880 -0.205 0.669 1.496
    出口渐变率 -149.040 51.39 -0.16 -2.90 0.034 -281.13 -16.95 0.046 -0.792 -0.143 0.845 1.183
    下载: 导出CSV

    表  8  残差诊断结果(部分)

    Table  8.   Residual diagnosis results (partial)

    分流点实测值/(km·h-1) 小鼻点实测值/(km·h-1) 小鼻点预测值/(km·h-1) 残差/(km·h-1) 标准化残差/(km·h-1) 相对误差/%
    68.4 54.0 53.569 02 -0.430 976 0.609 163 0.80
    72.0 64.8 58.342 62 -6.457 376 -0.841 089 9.97
    69.1 57.6 54.497 22 -3.102 776 -0.033 805 5.39
    79.2 62.4 67.889 82 5.489 823 2.034 003 8.80
    65.3 51.0 49.458 42 -1.541 576 0.341 897 3.02
    74.1 63.6 61.127 22 -2.472 776 0.117 804 3.89
    下载: 导出CSV

    表  9  平均绝对百分比误差计算结果

    Table  9.   Calculation results of mean absolute percentage error

    匝道编号 匝道特征 分流点实测速度/(km·h-1) 小鼻点实测速度/(km·h-1) 曲中点实测速度/(km·h-1) 合流鼻实测速度/(km·h-1) 小鼻点处M/% 曲中点处M/% 合流鼻处M/%
    匝道圆曲线半径/m 出口渐变率
    10 135 1/25 79.621 68.125 59.279 60.235 3.802 4.893 5.537
    11 170 1/24 83.215 73.025 64.983 60.332 4.396 5.281 5.435
    12 330 1/24 80.015 73.457 69.352 66.553 4.696 6.549 5.931
    13 60 1/25 81.339 65.549 45.877 45.506 6.298 5.713 7.628
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-01-22
  • 网络出版日期:  2024-09-26
  • 刊出日期:  2024-08-28

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